circle

Related Questions

• If the equation $\frac{K{{(x+1)}^{2}}}{3}+\frac{{{(y+2)}^{2}}}{4}=1$ represents a circle, then $K=$

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• Circle ${{x}^{2}}+{{y}^{2}}-4x-8y-5=0$ will intersect the line $3x-4y=m$ in two distinct points, if

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• A circle passes through the origin and has its centre on $y=x$ . If it cuts ${{x}^{2}}+{{y}^{2}}-4x-6y+10=0$ orthogonally, then the equation of the circle is

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• The equation of the circle whose radius is 5 and which touches the circle ${{x}^{2}}+{{y}^{2}}-2x-4y-20=0$ externally at the point (5, 5), is

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• The radical centre of the circles ${{x}^{2}}+{{y}^{2}}-16x+60=0,\,{{x}^{2}}+{{y}^{2}}-12x+27=0,$ ${{x}^{2}}+{{y}^{2}}-12y+8=0$ is

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